Paste applying head for cigar rolling machines



March 25, 1941. H E SON 2,236,028

PASTE" APPLYING HEAD FOR CIGAR ROLLING MACHINES Filed Aug. 20, 1958 INVENTOR Jfid/JIZQT GIT/SO12 ATTORNEY Patented Mar. 25, 1941 onrrso STATES PATENT FFIQE.

PASTE APPLYING HEAD FOR CIGAR ROLLING. MACHINES Application August 20, 1938, Serial No. 225,961.

7 Claims.

This invention relates to an improved pasteapplying head to be used in connection with the plunger-operated wrapper paster of the type disclosed in the co-pending application of H; H.

Wheeler, S. N. 192,458, filed February 25, 1938.

The main object of the present invention is to produce a much more even paste delivery and to enable the use of pastes of varying densities. The function of a cigar machine wrapper paster is to deposit upon the under side of a cigar wrapper adhering by suction to a carrier, a paste daub in the form of a loop following the contour of the head end of the wrapper. The paste along this loop should be distributed as evenly as possible, and with paste-applying heads heretofore employed the even distribution of the.

paste is very diificult, wherefore the object of the present invention is to overcome this difficulty.

In order to obtain even distribution of paste over the entire delivery surface, the paste delivery head is made up of a number of superimposed communicating chambers in such a manner that the paste reaches the delivery ori-' fice by a circuitous route during which the flow of paste by the operation of the paster plunger is more or less equalized over the entire orifice.

In the accompanying drawing which illustrates a suitable embodiment of the improved paste-applying head: Fig. l is .a sectional side elevation of the improved paste-applying head shown attached to the delivery nozzle of a cigar machine paster;

Fig. 2 is a plan view of the same, on line 2-2 of Fig. l; and

Fig. 3 is a. modified form of paste-applying head wherein the orifice is reversiblev for pasting the wrappers of right and left hand cigars.

The paster head consists of a paste reservoir formed of an open rectangular shallow box 5 into 40 which isfitted and removably attached a somewhat shallower inverted box 6, the top of which is cut out to receive the loop-shaped orifice 1. The latter is somewhat deeper than the inner box 6 to which it is fastened at such a height as to form partitions or baffles in the same reaching nearly to the bottom of box 5.

The paste-applying head is mounted on a nozzle 8 capping the vertical delivery pipe 54 which is closed by a spring-tensioned valve 55. The

00 pipe M is slidable on a stationary pipe 52 communicating with the plunger-operated paste supply of the paster through a T M and pipe 63, the said T being supported on a stud 49 carried by an adjustable bracket 50. A spring 58 weaker than the spring of valve 55 attached to a collar Elmountedon pipe 53 holds the latter against the T 44.

In starting the apparatus, the entire pipe system is filled with paste by operating a hand pump (not shown) similar to that shown in the 5 co-pending application mentioned above, and then the stroke of the plunger is adjusted for ad- Vancing exactly the correct quantity of paste for one application. The paste forced by the action of the paste-plunger (not shown) into the delivery nozzle of the paster, on entering the already filled pipe 52, lifts the pipe 54 against the pressure of the spring 58, bringing the orifice 1 into contact with the wrapper W on the bottom of carrier head H. The pressure of the paste gradually increases until it opens the valve 55 and eXtrudes from nozzle 3, creating in the box 6, which has been previously filled with paste by the operation of the hand pump, a suitable pressure which forces the required quantity of paste through the loop I as indicated by arrows in Fig. 1.

It is preferred to mount the paster head so that the nozzle 8 will be located within the central region of the length of the orifice to cause the paste delivered by the nozzle to impinge on the top of box 6 and then flow downwardly and thereby assure a uniform flow of paste to all points of the orifice. If desired, the box 6 may be reversible in the box 5 to permit reversing of the orifice for 0 pasting the wrappers of either right or left hand cigar machines. In this event the depth of the orifice above and below the box S should be equal;

A suitable form of construction for this purpose is shown in Fig. 3, wherein the paste reser-. 5 voir consists of an open rectangular box provided with a ledge 1511 on which rests a plate It forming the top of the reservoir and provided with an orifice extending equally above and below the plate. In the bottom of the paste-applying head is mounted a nozzle it which is adapted to be threaded on the delivery pipe 54 in a position underlying the path of the wrapper carrier. Thus upon reversing plate l6 upon ledge l5a. a stripe of paste of suitable configuration for either right or left hand cigar wrappers may be extruded through the orifice upon a wrapper supported by the wrapper carrier.

In Fig. 2 it will be observed that the inner end of the loop of the orifice is spaced somewhat from the adjoining portion of the loop to prevent agglomeration of paste within this end of the loop. Previously, with loop-shaped orifices, this end of the loop was closed by being connected to the adjoining portion of the loop, wherefore the eX- Qal cess paste flowing into the space so enclosed tended to agglomerate and harden into an objectionable mass.

With the prior construction of cigar machine pasters, wherein the paste inlet is situated directly below the inner end of the orifice loop, it appears that the relatively viscous nature of the paste prevents a uniform flow of paste to all portions of the orifice. The sudden impact of the plunger on the paste seems to cause the paste to flow more rapidly through the nearer portions of the orifice, resulting in a non-uniform distribution of paste on the cigar wrapper. Actually, it has been found that pastes of a very viscous nature, which could not be used satisfactorily heretofore, may be used for the pasting operation when my paster head is employed.

What is claimed is:

1. In a cigar machine paster, the combination with a paste reservoir, of an orifice forming member extending into the interior of said reservoir and projecting from said reservoir sufiiciently to extrude paste on a leaf section, a conduit adapted to conduct paste from a source of paste supply to a point adjacent the top of said reservoir, and above the inlet portion of said member whereby the paste will follow a circuitous course from said conduit to said orifice.

2. In a cigar machine paster, the combination with a paste reservoir, of a top on said reservoir having an elongated orifice projecting from the top of said reservoir sufficiently to extrude paste on a leaf section, an inlet communicating with and adapted to feed paste to said reservoir, a pipe connected to said inlet and a source of paste supply, said inlet having a mouth opening into the upper portion of said reservoir and horizontally offset from said orifice and so constructed and arranged to cause the paste to follow a circuitous course from the inlet to the orifice and thereby produce a uniform fiow of the paste over the entire orifice.

3. In a cigar machine paster, the combination with a paste reservoir, said reservoir being provided with a top having an orifice arranged to extrude paste on a leaf section, of a conduit adapted to deliver paste from a source of supply to said reservoir, said reservoir being provided with internal baflle walk projecting internally of said reservoir between said conduit and orifice arranged adjacent and along the entire length of the orifice to cause the paste to flow to the orifice in a circuitous course.

4. In a cigar wrapper paster, the combination with a paste reservoir, of a top having an orifice arranged on said reservoir to extrude paste on a cigar wrapper, and having a loop-shaped configuration following the contour of the head end of a cigar wrapper, and a conduit arranged to supply paste to said reservoir at a point located within the central region of the length of and outside of the loop of said orifice and so constructed and arranged to assure a uniform flow of paste to all portions of the orifice.

5. In a cigar wrapper paster, the combination with a paste reservoir having a top and a loopshaped orifice in its top following the configuration of the head end of a cigar wrapper, of a conduit for supplying paste under pressure to said reservoir, the top of said reservoir being reversible thereon to permit the application of paste to right or left hand cigar wrappers.

6. In a cigar wrapper paster, the combination with a paste reservoir having an orifice in its top arranged to extrude paste on the head end of a cigar wrapper, of a conduit arranged to conduct paste under pressure to a point adjacent the top of said reservoir and having a mouth adjacent the top of the reservoir and sufficiently spaced from said orifice to cause the paste to impinge on the top of the reservoir and follow a circuitous course from the conduit to the orifice, and a check valve controlling the delivery of paste from said conduit into the top of said reservoir.

'7. In a cigar machine paster, the combination with a paste reservoir, of an orifice forming member extending into the interior of said reservoir and projecting from said reservoir sufliciently to extrude paste on a leaf section, a conduit adapted to conduct paste from a source of supply to a point above the inlet portion of said member whereby the paste will follow a circuitous course from said conduit to said orifice.

I-IJALMAR E. CARLSON. 

